/* fdcDrv.h - Floppy Disk Controller (FDC) Input/Output Header Module *//* Copyright 1984-1998 Wind River Systems, Inc. *//* Copyright 1996,1997,1998 Motorola, Inc. *//*modification history--------------------01a,29Oct97,rb   created by Motorola.*//*DESCRIPTIONThis file contains structures used by the floppy driver to maintaininformation about the disk drive and for the command packet used totransfer requests to the disk.*/#ifndef INCfdcDrvh#define INCfdcDrvh#ifdef __cplusplusextern "C" {#endif#define AESSIZE	32	/* error status data buffer size in bytes */#ifdef MBX860#  undef FDC_ENHANCED		/* enhanced floppy disk controller */#else#  define FDC_ENHANCED          /* enhanced floppy disk controller */#endif#define FDC_DMAALIGN	0x10000	/* DMA alignment (modulus of) */#define FDC_NDRIVES	4	/* number of supported drives *//* controller dependent error codes */#define FDC_ERROR_READ		0x01	/* error during read operation */#define FDC_ERROR_WRITE		0x02	/* error during write operation */#define FDC_ERROR_ILLDREQ	0x03	/* illegal data request */#define FDC_ERROR_DATACOUNT	0x04	/* data count (expected != actual) */#define FDC_ERROR_FORMAT	0x05	/* format failed */#define FDC_ERROR_SEEK		0x06	/* seek failed */#define FDC_ERROR_CLEARRESET	0x07	/* clear reset status failed *//* * timeout definitions * * these timeout definitions are hardware specific, and must be measured * (or known), the access time definition basically states the maximum * time it would take to access the FIFO, its granularity is in * micro-seconds, which would suffice for most products, but just in case * the definition is "ifdef"'d */#define	FDC_TIMEOUT		2000000	/* time out in US */#define	FDC_ACCESSTIME		1	/* access time to FIFO in US */#define FDC_TIMEOUTCOUNT	(FDC_TIMEOUT/FDC_ACCESSTIME)/* command identifiers */#define FDC_READOP	0	/* read operation */#define FDC_WRITOP	1	/* write operation */#define FDC_FRMTOP	2	/* format operation */#define FDC_CHCKOP	3	/* check operation *//* typedefs * * position calculation structure template */typedef struct fdc_pos     {    UINT lsector;	/* logical sector number */    USHORT cylndrno;	/* cylinder number */    UCHAR headno;	/* head number */    UCHAR sectorno;	/* sector number */    } FDC_POS;/* command/result data structure template */typedef struct fdc_crdata     {    FDC_COMMAND c_data;	/* command data */    FDC_RESULT r_data;	/* result data */    } FDC_CRDATA;/* driver command packet */typedef struct fdc_cmdpckt     {    UINT command;		/* command identifier */    UINT status;			/* status (error code) */    UINT memaddr;		/* memory address */    UINT blcknum;		/* block number */    UINT nblcks;			/* number of blocks to transfer */    UINT tdflg;			/* track/disk flag, format operations */    UINT e_count;		/* expected data count */    UINT a_count;		/* actual data count */    UINT aescount;		/* additional error status count */    UCHAR aesdata[AESSIZE];	/* additional error status data buffer */    } FDC_CMDPCKT;/* floppy device/disk type structure template */typedef struct fdc_type {    UINT numberofheads;	/* number of heads (sides) */    UINT numberoftracks;	/* number of tracks */    UINT sectorstrack;	/* sectors (blocks) per track */    UINT sectorsize;	/* sector (block) size in bytes */    UINT ratestep;	/* step rate */    UINT ratedata;	/* data rate */    UINT gaprw;		/* read/write sector gap */    UINT gapformat;	/* format gap */    } FDC_TYPE;/* driver device data template */typedef struct fdc_dev     {    BLK_DEV fdcBlockDev;/* block device descriptor (vxWorks - must be first) */    FDC_TYPE fdcType;	/* floppy disk/device type */    UINT driveNumber;	/* drive/device number */    UINT blockSize;	/* logical block size in bytes */    UINT blockOffset;	/* logical block offset from zero of start */    UINT blockTotal;	/* number of logical blocks from offset */    UINT dmaBuffer;	/* DMA buffer address */    SEM_ID intSemId;	/* interrupt to task level semaphore */    int sysClkRate;	/* system clock rate */    } FDC_DEV;/* interrupt arguments data template */typedef struct fdc_iargs     {    FDC_DEV *pDev;		/* device descriptor pointer */    FDC_CMDPCKT *pCmd;		/* command packet pointer */    FDC *pFdc;			/* FDC registers pointer */    FDC_CRDATA *cr_data_p;	/* command/result data pointer */    } FDC_IARGS;#ifdef __cplusplus}#endif#endif  /* INCfdcDrvh */